Chairman Mao once pointed out: "Weapons are an important factor in war, but they are not decisive factors. The decisive factor is people, not things. " It goes without saying that the core element of war is "man".

"The most important task of military equipment is to strengthen the heart first." The purpose of establishing national defense education day in China is to stimulate citizens' sense of historical responsibility and social responsibility and understand national defense knowledge and basic skills through national defense education.